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After empty promises, string theory finds new uses

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thumb_up 213 comment 6 2026 1 month ago
For decades, string theory promised a “theory of everything” that described all particles and forces as tiny vibrating strings. Physicists hoped it could also solve one of the field’s deepest problems: reconciling quantum mechanics with gravity. But as string theory grew increasingly elaborate—and experimentally unreachable—many physicists lost hope. Now, some researchers are revisiting the theory from first principles, Zack Savitsky reports for Science. Learn more: https://scim.ag/3RYBHqm CREDITS: (SCRIPT) Z. SAVITSKY/SCIENCE; (ILLUSTRATION) SCOTT CAMAZINE/SCIENCE SOURCE; (MUSIC) C. BURNS/SCIENCE